Osteochondral Lesion of the Talus (OLT): Grading, Symptoms, Causes, Treatment. What is Osteochondral Lesion of the Talus? Osteochondral lesion of the talus, also known as OLT, is a disorder, which consists of a section of damaged cartilage. There is also a bone on top of the talus.
For other uses, see Ethnic groups in Europe. The Caucasian race (also Caucasoid or occasionally Europid) is a taxon historically used to describe the physical or biological type of some or all of the populations of Europe, North Africa, the Horn of Africa, Western Asia, Central Asia, and South Asia.he United States National Library of Medicine often used the term Caucasian as a race in the past. However, it later discontinued such usage in favor of the more narrow geographical term European, which traditionally only applied to a subset of Caucasoids.
In the contemporary United States, essentially anyone of European descent is considered White. However, many of the ethnic groups classified as White by the U.S. Census, such as Jewish-Americans, Arab-Americans, and Hispanics or Latinos may not identify as, and may not be perceived to be, White.